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authorDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 09:11:43 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2016-10-05 16:26:26 -0700
commit98cc2db5b8b2c9f38aebf54a7b03657406b6de26 (patch)
tree2cac01aab4083ea3e9c3dae5ee7665a16e923190 /fs/xfs/xfs_reflink.h
parentf0bc4d134b46607967bda1205ce3226a1bd95f42 (diff)
xfs: unshare a range of blocks via fallocate
Unshare all shared extents if the user calls fallocate with the new unshare mode flag set, so that we can guarantee that a subsequent write will not ENOSPC. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> [hch: pass inode instead of file to xfs_reflink_dirty_range, use iomap infrastructure for copy up] Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_reflink.h')
-rw-r--r--fs/xfs/xfs_reflink.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h
index df82b2049187..bade5a61f3b0 100644
--- a/fs/xfs/xfs_reflink.h
+++ b/fs/xfs/xfs_reflink.h
@@ -48,5 +48,9 @@ extern int xfs_reflink_recover_cow(struct xfs_mount *mp);
extern int xfs_reflink_remap_range(struct xfs_inode *src, xfs_off_t srcoff,
struct xfs_inode *dest, xfs_off_t destoff, xfs_off_t len,
unsigned int flags);
+extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip,
+ struct xfs_trans **tpp);
+extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset,
+ xfs_off_t len);
#endif /* __XFS_REFLINK_H */